Effect of Cysteamine-preparation on Dairy Performance of Dairy Holstein Friesian Cows

被引：0

作者：

崔立 ^{[1
]}

陆天水 ^{[2
]}

陈峰 ^{[3
]}

黄锦贤 ^{[3
]}

机构：

[1] School of Agriculture and Biology, Shanghai Jiaotong Univ., Shanghai 201101, China

[2] School of Animal Science and Technology, Nanjing Agricultural Univ., Nanjing 210095

[3] The 7thFarm of Shanghai Guangming Dairy Group, Shanghai 201103

来源：

Journal of Shanghai Jiaotong University | 2005年 / S1期

关键词：

cysteamine; cow; milk yield; milk component;

D O I：

暂无

中图分类号：

S823.91 [];

学科分类号：

0905 ;

摘要：

Thirty Holstein Friesian cows with similar weight, age, calving number, lactating length, fat percentage, and same physiology condition were selected and randomly divided into 3 groups: group I, group II and group III, 20 g and 40 g Cysteamine /(cow·day) was supplemented into the normal diet for group I and group II, respectively; group III was used as control. Results showed that, group I and group II produced 4.86 % and 6.88 % more milk than that of control (P<0.05); Meanwhile, FCM (3.5 % fat) of group I and group II was increased by 4.98 % (P<0.01) and 6.56 % (P<0.01). Change of the milk fat among the three groups were not significant(P<0.05). Average daily milk protein yield significantly was increased by 4.14 % and 2.76 % respectively (P<0.05), though the milk protein content was slightly reduced. Moreover, somatic cells of the cow in the three groups were in normal physiological range in this trial.

引用

页码：110 / 114 +119

页数：6